Photoelectric performance of plastic dye-sensitized solar cell (PDSC) using indoline dye D149 as an organic sensitizer was improved by introduction of a thin titania buffer layer on ITO-PEN (indium tin oxide coated polyethylenenaphthalate) film. With prominent increase in photocurrent density, open circuit voltage, and fill factor, the energy conversion efficiency of PDSC using D149 achieved 3.7%.
